477218649 has 16 divisors (see below), whose sum is σ = 671328000. Its totient is φ = 300704976.

The previous prime is 477218633. The next prime is 477218659. The reversal of 477218649 is 946812774.

It is not a de Polignac number, because 477218649 - 2⁴ = 477218633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 477218598 and 477218607.

It is not an unprimeable number, because it can be changed into a prime (477218659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15802 + ... + 34700.

It is an arithmetic number, because the mean of its divisors is an integer number (41958000).

Almost surely, 2^477218649 is an apocalyptic number.

It is an amenable number.

477218649 is a deficient number, since it is larger than the sum of its proper divisors (194109351).

477218649 is a wasteful number, since it uses less digits than its factorization.

477218649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19364.

The product of its digits is 677376, while the sum is 48.

The square root of 477218649 is about 21845.3347193400. The cubic root of 477218649 is about 781.4582893035.

The spelling of 477218649 in words is "four hundred seventy-seven million, two hundred eighteen thousand, six hundred forty-nine".